What is the 2011-2019 Ford Fiesta Electronic Throttle Body Failure — Sudden Limp Mode & Wrench Light?

The drive-by-wire electronic throttle body (ETB) develops an internal electronic/motor fault (not just dirt) that causes the powertrain control module to command reduced power. The car drops into limp mode with a wrench/powertrain-malfunction light, often storing throttle-positio… Repairs typically run $250-$700. Severity: high.

What is the 2011-2019 Ford Fiesta Electric Power Steering (EPS) Assist Fault — Sudden Loss of Assist?

Fiestas can display 'Power Steering Assist Fault — Service Required' and lose electric power-steering assist, sometimes intermittently while driving. Root causes include torque-sensor faults and intermittent electrical connections in the steering column/gear that stop the control… Repairs typically run $350-$1,500. Severity: high.

What is the 2012-2017 Ford Fiesta 1.0L EcoBoost Degas Hose Coolant Loss & "EcoBoom" Overheating Engine Failure?

The 1.0L EcoBoost uses a brittle nylon degas/coolant return hose running from the top of the expansion tank to the engine. Over thousands of heat cycles the nylon becomes brittle and cracks or snaps, often at highway speed. Because the engine has a very small coolant capacity and… Repairs typically run $200-$4,500. Severity: high.

What is the 2011-2019 Ford Fiesta Thermostat Housing Coolant Leak?

The plastic thermostat housing on the 1.6L engine develops cracks and leaks coolant. The plastic becomes brittle from heat cycling over time. This can lead to overheating if coolant loss goes unnoticed. Repairs typically run $150-$400. Severity: medium.

What is the 2008-2019 Ford Fiesta Coil Spring Fracture — Snapped Suspension Spring?

The suspension coil springs fracture, typically near the bottom coil, often triggered by corrosion at the spring seat combined with road-input stress from speed bumps and rough surfaces. This is a very frequently reported Fiesta failure — front springs are most commonly cited but… Repairs typically run $200-$500. Severity: medium.

What is the 2011-2019 Ford Fiesta Ignition Coil / Spark Plug Misfire — Oil-Fouled Coils & Water Ingress in Plug Wells?

Fiestas — especially the 1.6L EcoBoost ST — commonly throw misfire codes and run rough at idle from failing ignition coils and fouled spark plugs. Owners report oil creeping onto the coil boots and, notably, rainwater entering the spark-plug wells via the washer-jet routing, whic… Repairs typically run $150-$550. Severity: medium.

What is the 2011-2019 Ford Fiesta Manual Transmission Clutch Judder & Slave/Release Cylinder Failure?

Manual-transmission Fiestas (5-speed B5/IB5) commonly develop clutch judder, a soft/sinking pedal, and inability to select gears when the concentric slave/release cylinder or clutch master cylinder fails. Owners report the clutch going to the floor when stopped and gears becoming… Repairs typically run $600-$1,400. Severity: medium.

What is the 2011-2019 Ford Fiesta TDCi Diesel DPF Blockage & Failed Regeneration (Short-Trip Use)?

Diesel Fiestas frequently suffer diesel particulate filter (DPF) blockage and incomplete/failed regeneration, especially on cars used mainly for short, low-speed journeys that never reach regeneration temperature. Soot accumulates, the DPF warning light appears, and the car may e… Repairs typically run $400-$2,500. Severity: medium.

What is the 2011-2019 Ford Fiesta Water Leak Into Footwell — Blocked Scuttle Drain / Pollen-Filter Housing?

Fiestas commonly get wet passenger (and sometimes driver) footwell carpets from rainwater entering via the scuttle panel at the base of the windscreen. Leaves and debris block the scuttle drain, or the scuttle-to-windscreen seal fails, letting water pool and overflow into the cab… Repairs typically run $80-$500. Severity: medium.

What is the 2011-2019 Ford Fiesta Blend Door Actuator Failure — Stuck on Heat or Cold?

The Ford Fiesta is prone to blend door actuator failure, which controls the mix of hot and cold air in the HVAC system. When the actuator motor or its plastic gears fail, the system gets stuck blowing only hot air or only cold air regardless of temperature settings. A characteris… Repairs typically run $30-$400. Severity: low.

What is the 2011-2019 Ford Fiesta EVAP Canister Purge Valve Failure?

The EVAP canister purge valve sticks open, causing difficulty fueling (pump nozzle keeps clicking off), rough idle, and check engine light. Very common on the 1.6L engine. Repairs typically run $30-$150. Severity: low.

What is the 2008-2019 Ford Fiesta Power Window Regulator / Cable Failure — Glass Drops Into Door?

The plastic-geared window motor cog and the regulator's lift cables/clips wear or break, causing the window to fall inside the door, stick partway, or move only after repeated button presses. A characteristic symptom is a clicking/chattering or grinding noise as the glass jams or… Repairs typically run $150-$450. Severity: low.

What is the 2011-2019 Ford Fiesta SYNC / APIM Infotainment Freezing, Rebooting & Bluetooth/CarPlay Dropouts?

Fiesta SYNC/MyFord Touch and SYNC 3 systems commonly freeze, randomly reboot, drop Bluetooth pairing, and lose Apple CarPlay connectivity. Many failures are software 'handshake' hangs, but a subset are hardware failures of the Accessory Protocol Interface Module (APIM), which can… Repairs typically run $0-$1,200. Severity: low.

What is the 2011-2019 Ford Fiesta Rear Suspension Knock — Worn Rear Shock Top Mounts & Damper Bushings?

Fiestas (2008–2019, including ST) frequently develop knocking, clunking, or scrubbing noises from the rear suspension over bumps. Common causes are worn rear shock-absorber top mounts, deteriorated damper eye/lower-mount bushings, and torn rubber that lets the shock move in its m… Repairs typically run $300-$900. Severity: low.

Ford · Known Issues

2012 Ford Fiesta Problems: 16 Issues Every Owner Should Know

2012 model year · 1,830+ owner reports · Updated July 2026

Share:@au7o.io

According to Au7o's analysis of 1,830+ owner reports, the 2012 Ford Fiesta has 16 documented known issues, with 5 rated critical. The most serious are DPS6 PowerShift Dual-Clutch Transmission Shudder, Slipping, and Failure ($0-$3,500 repair), Door Latch Failure — Doors May Open While Driving ($0-$300 repair), Electronic Throttle Body Failure — Sudden Limp Mode & Wrench Light ($250-$700 repair), Electric Power Steering (EPS) Assist Fault — Sudden Loss of Assist ($350-$1,500 repair) and 1.0L EcoBoost Degas Hose Coolant Loss & "EcoBoom" Overheating Engine Failure ($200-$4,500 repair). The most commonly reported issue is DPS6 PowerShift Dual-Clutch Transmission Shudder, Slipping, and Failure with 950 owner reports. Across all issues with published estimates, repair costs range from $30 to $4,500. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Ford Fiesta problems?

According to Au7o's analysis of 1,830+ owner reports, the 2012 Ford Fiesta has 16 documented issues. The most frequently reported are: DPS6 PowerShift Dual-Clutch Transmission Shudder, Slipping, and Failure, Door Latch Failure — Doors May Open While Driving, Electronic Throttle Body Failure — Sudden Limp Mode & Wrench Light. Of these, 5 are rated critical and should be addressed promptly.

Is the Ford Fiesta reliable?

The 2012 Ford Fiesta has 16 known issues documented across 1,830+ owner reports. 5 issues are rated critical: DPS6 PowerShift Dual-Clutch Transmission Shudder, Slipping, and Failure and Door Latch Failure — Doors May Open While Driving and Electronic Throttle Body Failure — Sudden Limp Mode & Wrench Light and Electric Power Steering (EPS) Assist Fault — Sudden Loss of Assist and 1.0L EcoBoost Degas Hose Coolant Loss & "EcoBoom" Overheating Engine Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Ford Fiesta problems?

Repair costs for known Ford Fiesta issues range from $0 to $4,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, DPS6 PowerShift Dual-Clutch Transmission Shudder, Slipping, and Failure, typically costs $0-$3,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2011-2019 Ford Fiesta DPS6 PowerShift Dual-Clutch Transmission Shudder, Slipping, and Failure?

The Ford Fiesta equipped with the DPS6 PowerShift dual-clutch automatic transmission is one of the most complained-about vehicles in recent history. The dry dual-clutch design causes severe shuddering, jerking, hesitation, and complete loss of power during acceleration. The clutc… Repairs typically run $0-$3,500. Severity: high.

All 16 Known Issues

Other Ford Models

Frequently Asked Questions

What are the most common Ford Fiesta problems?

Is the Ford Fiesta reliable?

How much does it cost to fix common Ford Fiesta problems?

What is the 2011-2019 Ford Fiesta DPS6 PowerShift Dual-Clutch Transmission Shudder, Slipping, and Failure?

What is the 2011-2015 Ford Fiesta Door Latch Failure — Doors May Open While Driving?

2012-2017 Ford Fiesta: 1.0L EcoBoost Degas Hose Coolant Loss & "EcoBoom" Overheating Engine Failure#

2011-2019 Ford Fiesta: Thermostat Housing Coolant Leak#

2011-2019 Ford Fiesta: Blend Door Actuator Failure — Stuck on Heat or Cold#

2011-2019 Ford Fiesta: DPS6 PowerShift Dual-Clutch Transmission Shudder, Slipping, and Failure#

2011-2019 Ford Fiesta: Manual Transmission Clutch Judder & Slave/Release Cylinder Failure#

2011-2015 Ford Fiesta: Door Latch Failure — Doors May Open While Driving#

2011-2019 Ford Fiesta: Water Leak Into Footwell — Blocked Scuttle Drain / Pollen-Filter Housing#

2011-2019 Ford Fiesta: Electronic Throttle Body Failure — Sudden Limp Mode & Wrench Light#

2011-2019 Ford Fiesta: Ignition Coil / Spark Plug Misfire — Oil-Fouled Coils & Water Ingress in Plug Wells#

2011-2019 Ford Fiesta: Electric Power Steering (EPS) Assist Fault — Sudden Loss of Assist#

2008-2019 Ford Fiesta: Coil Spring Fracture — Snapped Suspension Spring#

2011-2019 Ford Fiesta: Rear Suspension Knock — Worn Rear Shock Top Mounts & Damper Bushings#

2011-2019 Ford Fiesta: TDCi Diesel DPF Blockage & Failed Regeneration (Short-Trip Use)#

2011-2019 Ford Fiesta: EVAP Canister Purge Valve Failure#

2008-2019 Ford Fiesta: Power Window Regulator / Cable Failure — Glass Drops Into Door#

2011-2019 Ford Fiesta: SYNC / APIM Infotainment Freezing, Rebooting & Bluetooth/CarPlay Dropouts#